Scanning apparatus and image forming apparatus having the same

ABSTRACT

A scanning apparatus to indicate a scanning progress status includes a main body having a platen on which a document is set, a scanning module to move inside the main body and to scan the document, and an indicating light disposed integrally with the scanning module to indicate a current location of the scanning module.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. § 119(a) from KoreanPatent Application No. 2006-88163 filed Sep. 12, 2006 in the KoreanIntellectual Property Office, the disclosure of which is incorporatedherein by reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present general inventive concept relates to a scanning apparatus.More particularly, the present general inventive concept relates to aflatbed scanning apparatus and an image forming apparatus having thesame.

2. Description of the Related Art

Generally, a flatbed scanning apparatus is an apparatus that places adocument at a fixed position and forces a scanning module to move and toread the document.

A conventional flatbed scanning apparatus includes a platen where adocument is placed, and a scanning module that is movably disposed underthe platen and reads the document on the platen.

The scanning module includes a scanning light source to illuminate thedocument, and a scanning sensor that receives light reflected from thedocument and converts it to electrical signals. The scanning module usesa charge-coupled device (CCD) or a CMOS image sensor (CIS) as thescanning sensor. The CCD sensor needs great intensity of light enough toread images of the document. Therefore, the scanning module having theCCD sensor uses scanning light sources with great intensity of light.The CIS sensor can read images of the document using small intensity oflight, so that the scanning module having the CIS sensor uses thescanning light sources with small intensity of light.

When scanning a document in the flatbed scanning apparatus, a user setsthe document on the platen and turns on the flatbed scanning apparatus.Then, the scanning module moves under the platen and reads the document.In other words, when the flatbed scanning apparatus is turned on, thescanning light source emits light toward the document, and then, thescanning sensor receives the light reflected from the document andconverts it to electrical signals representing the second document.

When performing a scanning work in a flatbed scanning apparatus, thedocument on the platen need to be covered by a lid to minimizedeterioration of scanned images caused by outside lights. However, whenscanning the document covered by the lid, a user cannot see the scanningmodule moving under the platen. As a result, there is a problem thatusers cannot know a scanning progress status during the scanning work.

In an attempt to solve the above problem, there has been developed aflatbed scanning apparatus that has a light guiding member that guideslight emitted from a scanning light source to an outside of the flatbedscanning apparatus, so that users can perceive a scanning progressstatus according to light emitting through the light guiding member.

The above-described method allows users to easily perceive a scanningprogress status. However, it is required to use a scanning light sourcewith greater intensity of light in order to guide light of the scanninglight source to the outside. As a result, the above method can beapplied to flatbed scanning apparatuses using CCD sensors, but cannot beapplied to flatbed scanning apparatuses using CIS sensors. Accordingly,there is a need for developing methods or apparatuses to allow users toeasily perceive a scanning progress status of a scanning apparatus usinga scanning light source with small intensity of light.

SUMMARY OF THE INVENTION

The present general inventive concept provides a scanning apparatus,which may use a scanning light source with small intensity of light andallow users to easily perceive a scanning progress status, and an imageforming apparatus having the same.

Additional aspects and advantages of the present general inventiveconcept will be set forth in part in the description which follows and,in part, will be obvious from the description, or may be learned bypractice of the general inventive concept.

The above aspect and/or other aspects and feature of the present generalinventive concept can substantially be achieved by providing a scanningapparatus, which includes a main body having a platen on which adocument is set, a scanning module to move inside the main body and toscan the document, and an indicating light disposed integrally with thescanning module to indicate a current location of the scanning module.

The scanning apparatus may further include an indicating window formedat the main body to allow light emitting from the indicating light to beseen outside when the indicating light is turned on.

The indicating window may include a standby window formed at a positioncorresponding to the indicating light when the scanning module standsby.

The indicating light may blinks on and off when an error occurs.

The above and/or other aspects and features of the present generalinventive concepts may also be achieved by providing a scanningapparatus including a main body having a platen on which a document isset, a scanning module to move inside the main body and to scan thedocument, and an indicating light having a plurality of lighting sourcesdisposed at the main body in a moving direction of the scanning moduleto indicate a current location of the scanning module.

One of the lighting sources corresponding to a current location of thescanning module may be turned on in a scanning operation. Alternatively,in the scanning operations all lighting sources corresponding as thescanning module may be turned on in the scanning operations.

The above and/or other aspects and features of the present generalinventive concepts may also be achieved by providing an image formingapparatus including a scanning apparatus having a main body with aplaten on which a document is set, a scanning module to move inside themain body and to scan the document, and an indicating light disposedintegrally with the scanning module to indicate a current location ofthe scanning module, and a printing unit disposed integrally with thescanning apparatus to form an image corresponding the scanned documenton a printing medium.

The indicating light may blink on and off when an error occurs in theprinting unit.

The image forming apparatus may further include a facsimile unitdisposed integrally with the scanning apparatus to transmit and receivefaxes, wherein the indicating light blinks on and off when a callarrives to the facsimile unit.

The above and/or other aspects and features of the present generalinventive concepts may also be achieved by providing an image formingapparatus including a scanning apparatus having a main body with aplaten on which a document is set, a scanning module to move inside themain body and to scan the document, and an indicating light comprising aplurality of lighting sources disposed at the main body in a movingdirection of the scanning module to indicate a current location of thescanning module, and a printing unit disposed integrally with thescanning apparatus to form images on a sheet of printing medium.

The foregoing and/or other aspects of the present general inventiveconcepts may also be achieved by providing a scanning apparatus usablein an image forming apparatus, the scanning apparatus including a mainbody, a scanning module disposed to move with respect to the main bodyto scan a document, a window formed on the main body, and an indicatinglight unit to indicate a position of the scanning module with respect tothe document through the window.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other aspects and advantages of the present generalinventive concept will become apparent and more readily appreciated fromthe following description of the embodiments, taken in conjunction withthe accompanying drawings of which:

FIG. 1 is a perspective view illustrating a scanning apparatus accordingto an exemplary embodiment of the present general inventive concept;

FIG. 2 is a perspective view illustrating a scanning module and anindicating light of the scanning apparatus of FIG. 1;

FIG. 3 is a front view illustrating a scanning apparatus having anindicating window according to an embodiment of the present generalinventive concept;

FIG. 4 is a perspective view illustrating a scanning apparatus accordingto an embodiment of the present general inventive concept;

FIG. 5 is a perspective view illustrating a scanning apparatus accordingto an embodiment of the present general inventive concept; and

FIG. 6 is a perspective view illustrating an image forming apparatushaving a scanning apparatus according to an embodiment of the presentgeneral inventive concept.

Throughout the drawings, like reference numerals will be understood torefer to like parts, components and structures.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the embodiments of the presentgeneral inventive concept, examples of which are illustrated in theaccompanying drawings, wherein like reference numerals refer to the likeelements throughout. The embodiments are described below in order toexplain the present general inventive concept by referring to thefigures.

Referring to FIG. 1, a scanning apparatus 1 according to an embodimentof the present general inventive concept includes a main body 10, ascanning module 20, and an indicating light 40.

The main body 10 includes a platen 13 on which a document is set, and amoving unit (not shown) disposed inside the main body 10 to cause thescanning module 20 to linearly move with respect to the main body 10.

The platen 13 is made of a transparent glass. The moving unit is thesubstantially same as that of a conventional scanning apparatus;therefore, a detail description thereof is omitted. A lid 15 is disposedat a side of the platen 13 to selectively open and close the platen 13.

An indicating window 30 is disposed at a front side 11 of the main body10 in a moving direction of the scanning module 20. The indicatingwindow 30 may have a length equal to or longer than that of a traveling(moving) distance of the scanning module 20. It is possible that theindicating window 30 may have a length shorten then the travelingdistance of the scanning module 20 when the indicating light 40 is notfixedly mounted on the scanning module 20. The indicating window 30 isconfigured in such a way that when an indicating light 40 is turned on,the indicating light 40 can be seen from an outside of the main body 10.The indicating window 30 is made of any of a semi-transparent materialor transparent material so that light emitting from the indicating light40 can be seen from the outside. The indicating window 30 is disposed ata slot formed at the front side 11 of the main body 10 in the movingdirection of the scanning module 20. The indicating window 30 has alength corresponding to a moving distance of the scanning module 20.Therefore, during a scanning work (operation or mode), the indicatinglight 40 moves from an end 30 a of the indicating window 30, i.e., astarting end, to the other end 30 b of the indicating window 30, i.e., aterminal end.

On the other hand, the main body 10 may further have a standby window 32formed at the front side 11 of the main body 10 corresponding to alocation where the scanning module 20 stands by in a standby mode beforestarting to scan in the scanning mode. The standby window 32 may beformed in an independent window separated from the indicating window 30as illustrated in FIG. 3. In this exemplary embodiment, the standbywindow 32 is formed in a circle shape. When the indicating light 40behind the standby window 32 is turned on, the standby window 32 becomeslight so that users can easily know that the scanning apparatus 1 isready to scan. In this case, the indicating window 30 of FIG. 3 may havea length shorter than the moving distance of the scanning module 20 toscan the document.

The scanning module 20 scans a document set on the platen 13 and isdisposed under the platen 13 inside the main body 10 to move linearly bythe moving unit. Referring to FIG. 2, the scanning module 20 includes ascanning light source 21 to emit light toward the document, and one ormore scanning sensors (not shown) that read the document by detectingthe light reflected from the document. The CMOS image sensor (CIS) isused as the scanning sensor. The CIS sensors can scan a document insmall intensity of light compared to the greater intensity of the lightin CCD sensor. Therefore, the scanning module 20 having the CIS sensorsuses the scanning light source 21 having smaller intensity of light thanthat of a scanning module employing CCD sensors.

The indicating light 40 indicates a current location of the scanningmodule 20 and is disposed at a side of the scanning module 20 to movewith the scanning module 20. In this exemplary embodiment, as illustratein FIG. 2, the indicating light 40 is disposed integrally with thescanning module 20. Therefore, if the scanning module 20 moves, theindicating light 40 moves. The indicating light 40 is disposed at aposition where light emitting from the indicating light 40 does notinterfere with the scanning module 20 to scan a document. Therefore, theindicating light 40 may be disposed at a lower level than that of aposition where the scanning light source 21 is disposed with respect tothe platen 13.

Also, although not illustrated, the indicating light 40 may not bedisposed integrally with the scanning module 20 but may be linked to thescanning module 20 so as to move as the scanning module 20 moves. Atthis time, a shield plate 14 may be provided between the indicatinglight 40 and the scanning module 20 to prevent light emitting from theindicating light 40 from entering the scanning module 20. When thescanning light source is disposed in a direction, the indicating light40 is disposed to emit light in the direction.

On the other hand, the indicating light 40 is turned on when thescanning apparatus 1 is ready to scan, and is kept to be on during ascanning work. When an error occurs in the scanning module 20, theindicating light 40 may be configured to blink on and off. A lightemitting diode (LED) may be used as the indicating light 40 to preventthe scanning apparatus 1 from consuming power and to decrease electricalpower consumption. The indicating light 40 may be configured by only onelighting source. Alternatively, the indicating light may be configuredby a plurality of lighting sources. When indicating errors, etc., theindicating light 40 including the plurality of lighting sources can givevarious visual effects. For example, one of the lighting sources can beused as the indicating light 40, and another one of the lighting sourcescan be used to indicate the error of the scanning apparatus 1.

Hereinafter, an operation of a scanning apparatus 1 according to theembodiment of the present general inventive concept will be explainedwith reference to FIGS. 1 and 2.

When the scanning apparatus 1 is supplied with an electrical power tobecome ready to scan, the scanning module 20 is located at a startingposition and the indicating light 40 is turned on. When the indicatinglight 40 is turned on, the starting end 30 a of the indicating window 30lightens. In the scanning apparatus 1 having the standby window 32 asillustrated in FIG. 3, when the scanning apparatus 1 becomes ready toscan, the indicating light 40 is turned on behind the standby window 32so that the standby window 32 lightens.

When a user opens the lid 15 and sets a document on the platen 13 andstarts to scan, the scanning module 20 moves to scan and read thedocument. At this time, the indicating light 40 disposed at a side ofthe scanning module 20 moves with the scanning module 20. Therefore,when the scanning module 20 is moving, a user can watch for theindicating light 40 to be moving through the indicating window 30. Inother words, at the beginning of a scanning work, the indicating light40 locates at the starting end 30 a of the indicating window 30, andmoves toward the terminal end 30 b of the indicating window 30 accordingas the scanning work goes forward.

When the scanning work completes, the indicating light 40 locates at theterminal end 30 b of the indicating window 30. Therefore, according to alocation of the indicating light 40 through the indicating window 30, astatus at a scanning work can be recognized.

Also, when the scanning apparatus 1 is supplied with an electrical powerbut cannot perform a scanning work due to an error, the indicating light40 blinks on and off. Therefore, according to the indicating light 40 toblink on and off through the indicating window 30, an error occurring inthe scanning apparatus 1 can be recognized.

FIG. 4 is a plan view illustrating a scanning apparatus according to anembodiment of the present general inventive concept.

A scanning apparatus 1′ according to the present embodiment is differentfrom the scanning apparatus 1 of FIG. 1. An indicating window 30′ thatis disposed at a side of a top surface 12 of a main body 10′, that is,at a side of a platen 13 (see FIGS. 1 and 4) of a top surface 12 of themain body 10′. At this time, the indicating window 30′ is disposed in amoving direction of the scanning module 20 (see FIG. 1) and has a lengthcorresponding to a moving distance of the scanning module 20 and is notcovered by a lid 15′. In FIG. 4, the lid 15′ is placed on the platen 13to cover the document.

On the other hand, in the present embodiment, because the indicatinglight 40 emits light upward the same as the scanning light source, it isrequired to prevent the light of the indicating light 40 frominterfering with a scanning work. Therefore, the shield plate 14 may bedisposed between the indicating light 40 and the scanning module 20inside the main body 10′ so as to prevent the light of the indicatinglight 40 from going toward the scanning module 20.

The scanning module 20, the indicating light 40, the lid 15′ and anoperation of the scanning apparatus 1′ according to the presentembodiment maybe the substantially same as those of the scanningapparatus 1 of FIG. 1; therefore, detailed explanations thereof areomitted.

FIG. 5 is a perspective view illustrating a scanning apparatus 50according to an embodiment of the present general inventive concept.

Referring to FIG. 5, the scanning apparatus 50 includes a main body 60,a scanning module 70, and an indicating light 80.

The main body 60 includes a platen 63 on which a document is put and amoving unit (not shown) that is disposed inside the main body 60 andcauses the scanning module 70 to linearly move. The main body 60 issubstantially similar to the main body 10 of the scanning apparatus 1 ofFIG. 1; therefore, a detailed explanation is omitted.

The scanning module 70 includes a scanning light source 71 to scan adocument being set on the platen 63 and is disposed under the platen 63inside the main body 60 to move linearly by the moving unit. Thescanning module 70 is the substantially same as the scanning module 20of the scanning apparatus 1 of FIG. 1; therefore, a detailed explanationthereof is omitted.

The indicating light 80 includes a plurality of lighting sources 81. Theplurality of lighting sources 81 is disposed in a line at a front side61 of the main body 60 in a moving direction of the scanning module 70.In the present embodiment, sixteen LEDs 81 are disposed in a line at thefront side 61 of the main body 60.

A controller 69 includes a memory to store a position of each of theplurality of lighting sources 81 disposed in a moving direction of thescanning module 70. Also, the controller 69 can determine a currentlocation of the scanning module 70 during a scanning work (scanning modeor operation). Therefore, when the scanning module 70 stands by to scan,the controller 69 turns on a lighting source 81 a at a starting end andcauses the other lighting sources 81 to keep off. Also, when thescanning module 70 moves, the controller 69 turns on a lighting source81 corresponding to a location where the scanning module 70 passes by.At this time, the controller 69 may be configured to turn on a newlighting source 81 and turn off a previously turned-on lighting source81 that the scanning module 70 already passed by. Alternatively, thecontroller 69 may be configured to turn on a new lighting source 81 andcause the previously turned-on lighting sources 81 that the scanningmodule 70 already passed by to keep on.

Also, an indicating window 90 may be disposed above the indicating light80 at the front side 61 of the main body 60 to protect the indicatinglight 80. The indicating window 90 may be made of any of transparent orsemitransparent materials.

Hereinafter, an operation of the scanning apparatus 50 according theembodiment of the present general inventive concept will be explainedwith reference to FIG. 5.

When the scanning apparatus 50 is supplied with an electrical power tobecome ready to scan, the scanning module 70 is located at a startingposition and the indicating light 80 is turned on. In other words, thelighting source 81 a at the starting end among the plurality of lightingsources 81 forming the indicating light 80 is turned on. The lightingsource 91 a at the starting end turned on informs users that thescanning apparatus 50 becomes ready to perform a scanning work.

A user opens a lid 65 and sets a document on the platen 63 and starts toscan. Then scanning module 70 moves in a direction to read the document.At this time, the controller 69 perceives a current location of thescanning module 70 and determines whether there is a lighting source 81corresponding to the current location of the scanning module 70. Ifthere is a lighting source 81 disposed where the scanning module 70 ispassing by now, the controller 69 turns the lighting source 81 on. Then,the user watches that the lighting sources 81 are turned on, and thenknows a progress status of a scanning work. In other words, at thebeginning of a scanning work a lighting source 81 a at the starting endof the indicating light 80 is turned on, and then, each of the pluralityof lighting sources 81 beside of it is turned on in order according asthe scanning work proceeds.

When the scanning work is completed, the plurality of lighting sources81 of the indicating light 80 is all turned on. Therefore, the user onlywatches the plurality of lighting sources 81 of the indicating light 80to be turned on so as to easily know the progress status of the scanningwork.

On the other hand, when the controller 69 turns on only a lightingsource 81 corresponding to where the scanning module 70 is passing byand turns off the other lighting sources 81, a light looks to move froma starting end of the indicating light 80 to a terminal end thereof. Atthis time, the user watches where a turned on lighting source is so asto know the progress status of a scanning work.

Also, when an electrical power is supplied to the scanning apparatus 50and an error occurs for the scanning apparatus 50 not to perform ascanning work, the plurality of lighting sources 81 of the indicatinglight 80 blinks on and off. Therefore, the indicating light 80 to blinkon and off allows users to easily know that an error occurs in thescanning apparatus 50.

FIG. 6 is a perspective view illustrating an image forming apparatus 100having a scanning apparatus 110 according to an embodiment of thepresent invention.

Referring to FIG. 6, the image forming apparatus 100 according to thepresent embodiment is a composite apparatus that can perform a scanningwork, a copying work, a printing work, and a facsimile work by oneapparatus. The image forming apparatus 100 includes the scanningapparatus 110, a printing unit 120, a facsimile unit 130, and acontroller 140.

The scanning apparatus 110 is substantially similar to the scanningapparatus 1 of FIG. 1; therefore, a detailed description thereof isomitted. However, at a side of the scanning apparatus 110 is disposed acontrol panel 150 that controls the image forming apparatus 100 toperform a scanning work, a copying work, a printing work, and afacsimile work.

The printing unit 120 is integrally disposed under the scanningapparatus 110, and prints printing data that the scanning apparatus 110scanned documents, printing data transmitted from a computer (not shown)connected with the image forming apparatus 100 and a received fax onsheets of printing media.

The printing unit 120 includes a printing medium feeding unit 121 tofeed a sheet of printing medium, an image forming unit (not shown) toform images on a sheet of printing medium, and a discharging unit (notshown) to discharge a sheet of printing medium having printed. Theprinting medium feeding unit 121, the image forming unit, and thedischarging unit constituting the printing unit 120 are substantiallysimilar to a conventional printing unit; therefore, detaileddescriptions thereof are omitted.

The facsimile unit 130 is disposed inside the image forming apparatus100, and transmits faxes to other facsimiles and receives faxes fromother facsimiles via a telephone network. Received faxes are printed onsheets of printing media by the printing unit 120 described above. Thefacsimile unit 130 is substantially similar to a conventional facsimileunit; therefore, a detailed description is omitted.

The controller 140 controls the scanning apparatus 110, the printingunit 120, and the facsimile unit 130 described above according tosignals inputted by the control panel 150 so that the image formingapparatus 100 performs a scanning work, a copying work, a printing work,and a facsimile work.

Furthermore, the controller 140 monitors the scanning apparatus 110, theprinting unit 120, and the facsimile unit 130 so that when errors occur,it lets users know an error occurrence using an indicating light 40 ofthe scanning apparatus 110. In other words, when an error occurs in theimage forming apparatus 100, the controller 140 blinks on and off theindicating light 40 of the scanning apparatus 110 so that users see theindicating light 40 to blink on and off through an indicating window 30,thereby knowing for errors to occur.

When there are various kinds of errors in the image forming apparatus100, an interval of blink of the indicating light 40 is set in variousways to express various kind errors. For example, when a sheet ofprinting medium is jammed in the printing unit 120, the indicating light40 is blinked on and off at short intervals, and when there is noprinting medium in the printing unit 120, the indicating light 40 isblinked on and off at long intervals.

Also, the indicating light 40 is used as a receive call indicatingsignal that indicates the arrival of a call to the facsimile unit 130.At this time, when a call is arrived to the facsimile unit 130, thecontroller 140 forces the indicating light 40 to blink on and off atvery short intervals. As a result, users can perceive a call to thefacsimile unit 130.

Introductions that the controller 140 controls the indicating light 40to indicate error occurring, receiving a call, etc are previously storedin a storage device (not shown) of the controller 140 such as a readonly memory (ROM).

In above descriptions, the composite apparatus is used as an imageforming apparatus including a scanning apparatus 1 according to theembodiment of the present general inventive concept; however, thisshould not be considered as limiting. A scanning apparatus according toan exemplary embodiment of the present invention may be applied tocopiers, facsimile machines, etc with a flatbed scanning apparatus.

Also, the above descriptions are with respect to a scanning apparatususing CIS sensors that require small intensity of light; however, theseshould not be considered as limiting. Alternatively, the presentinvention may be applied to scanning apparatuses using CCD sensors.

As described above, with a scanning apparatus and a composite apparatushaving the same according to an exemplary embodiment of the presentinvention, a separate indicating light indicates a current location of ascanning module so that the present invention can be applied in flatbedscanning apparatuses using lighting sources with small intensity oflight to allow users to easily know a progress status of a scanningwork.

Also, with a scanning apparatus and a composite apparatus having thesame according to an exemplary embodiment according of the presentinvention, when errors occur, an indicating light is blinked on and off.As a result, user can easily know error to occur.

Furthermore, composite apparatuses using a scanning apparatus accordingto an exemplary embodiment of the present invention may indicate thearrival of a call by an indicating light and may not use a telephonering. As a result, it can indicate the arrival of faxes without noise.

Although a few embodiments of the present general inventive concept havebeen shown and described, it will be appreciated by those skilled in theart that changes may be made in these embodiments without departing fromthe principles and spirit of the general inventive concept, the scope ofwhich is defined in the appended claims and their equivalents.

1. A scanning apparatus comprising: a main body comprising a platen onwhich a document is set; a scanning module to move inside the main bodyand to scan the document; and an indicating light disposed integrallywith the scanning module to indicate a current location of the scanningmodule.
 2. The scanning apparatus according to claim 1, furthercomprising: an indicating window formed at the main body to allow lightemitting from the indicating light to be exposed outside when theindicating light is turned on.
 3. The scanning apparatus according toclaim 2, wherein the indicating window further comprises a standbywindow formed at a position corresponding to the indicating light whenthe scanning module stands by.
 4. The scanning apparatus according toclaim 1, wherein the indicating light blinks on and off when an erroroccurs.
 5. A scanning apparatus comprising: a main body comprising aplaten on which a document is set; a scanning module to move inside themain body and to scan the document; and an indicating light comprising aplurality of lighting sources disposed at the main body in a movingdirection of the scanning module to indicate a current location of thescanning module.
 6. The scanning apparatus according to claim 5, whereinone of the lighting sources is turned on to correspond to a currentlocation of the scanning module in a scanning operation.
 7. The scanningapparatus according to claim 5, wherein the lighting sources are turnedon when the scanning module passes by in a scanning operation.
 8. Thescanning apparatus according to claim 5, wherein the indicating lightblinks on and off when an error occurs.
 9. An image forming apparatuscomprising: a scanning apparatus comprising; a main body comprising aplaten on which a document is set, a scanning module to move inside themain body and to scan the document, and an indicating light disposedintegrally with the scanning module to indicate a current location ofthe scanning module; and a printing unit disposed with the scanningapparatus to form images on a sheet of printing medium.
 10. The imageforming apparatus according to claim 9, wherein the indicating lightblinks on and off when an error occurs in the printing unit.
 11. Theimage forming apparatus according to claim 9, further comprising: afacsimile unit disposed integrally with the scanning apparatus totransmit and receive faxes, wherein the indicating light blinks on andoff when a call arrives to the facsimile unit.
 12. An image formingapparatus comprising: a scanning apparatus comprising; a main bodycomprising a platen on which a document is set; a scanning module tomove inside the main body and to scan the document; and an indicatinglight comprising a plurality of lighting sources disposed at the mainbody in a moving direction of the scanning module to indicate a currentlocation of the scanning module; and a printing unit disposed with thescanning apparatus to form images on a sheet of printing medium.
 13. Theimage forming apparatus according to claim 12, wherein the indicatinglight blinks on and off when an error occurs in the printing unit. 14.The image forming apparatus according to claim 12, further comprising: afacsimile unit disposed integrally with the scanning apparatus totransmit and receive faxes, wherein the indicating light blinks on andoff when a call arrives to the facsimile unit.
 15. A scanning apparatuscomprising: a main body; a scanning module disposed to move with respectto the main body to scan a document; a window formed on the main body;and an indicating light unit to indicate a position of the scanningmodule with respect to the document through the window.
 16. The scanningapparatus according to claim 15, wherein the window is formed in thesame direction as a moving direction of the scanning module.
 17. Thescanning apparatus according to claim 15, wherein the main bodycomprises a platen on which the document is disposed, and the window isformed on the same side of the main body on which the platen isdisposed.
 18. The scanning apparatus according to claim 15, wherein themain body comprises a first side on which the document is disposed, anda second side on which the window is disposed.
 19. The scanningapparatus according to claim 15, wherein the scanning module is disposedin a first direction, and the window is disposed in a second direction.20. The scanning apparatus according to claim 15, wherein the window hasa length to correspond to a moving distance of the scanning module. 21.The scanning apparatus according to claim 15, wherein the indicatinglight unit comprises a plurality of lighting sources to be turned onaccording to the location of the scanning module.
 22. The scanningapparatus according to claim 15, wherein the window is disposed in alengthwise direction of the document, and the scanning module and theindicating light unit move along the lengthwise direction.
 23. Thescanning apparatus according to claim 15, wherein the scanning modulegenerates a first light to scan the document, and the indicating lightunit generates a second light in a different direction from the firstlight according to a relationship between the document and the scanningmodule.